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Hi,
I am simulating a RF PA DAC at 1.88GHz. The PA output's amplitude is modulated with a signal of 1MHz with a sampling clock of 300MHz. I want to do a fft on the transient waveform to see the aliases od +- 300 MHz +- 1MHz on each side of the carrier.
My question is how to setup the...
Problem with S-param simulation in Momentum and Ref Node connection in SP2 Data Item
Hi all,
I am experiencing something in Momentum S-param simulation results which seems strange to me.
I am simulating a piece of metal on a 2-layer FR4 substrate to see its capacitance to the ground. I use a...
Hi,
I am trying to simulate the phase noise of a bunch of frequency dividers. My oscillator runs at 12-17 GHz. I use frequency dividers to generate quadrature signals and cover the desired frequency bands. Currently I am using a divide-by-2 conventional CML divider followed by two divide-by-2...
Hi everybody
I am characterizing a digitally controlled varactor ( 2 MOMCAPs and a switch ). I want to see the deviation in delta-C value of the varactor (Cmax-Cmin) through Monte Carlo local mismatch simulation. I also have a sweeping parameter, so after simulation I get a group of curves for...
pss convergence
Hi
I'm designing a frequency divider by 1.5 and I need to find the noise floor of this divider. It seems to be working fine in time domain, but pss does not converge. I'm using ideal input sources (freq=4GHz) and using Spectre Simulator in Cadence. This is my first time...
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